mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-24 23:38:09 +00:00
864 lines
31 KiB
Python
864 lines
31 KiB
Python
from __future__ import print_function
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import os
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import sys
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import time
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import binascii
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import hashlib
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import unicodedata
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import json
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import getpass
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from mnemonic import Mnemonic
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from . import tools
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from . import mapping
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from . import messages_pb2 as proto
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from . import types_pb2 as types
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from .debuglink import DebugLink
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# try:
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# from PIL import Image
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# SCREENSHOT = True
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# except:
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# SCREENSHOT = False
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SCREENSHOT = False
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DEFAULT_CURVE = 'secp256k1'
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# monkeypatching: text formatting of protobuf messages
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tools.monkeypatch_google_protobuf_text_format()
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def get_buttonrequest_value(code):
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# Converts integer code to its string representation of ButtonRequestType
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return [ k for k, v in types.ButtonRequestType.items() if v == code][0]
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def pprint(msg):
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msg_class = msg.__class__.__name__
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msg_size = msg.ByteSize()
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"""
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msg_ser = msg.SerializeToString()
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msg_id = mapping.get_type(msg)
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msg_json = json.dumps(protobuf_json.pb2json(msg))
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"""
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if isinstance(msg, proto.FirmwareUpload):
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return "<%s> (%d bytes):\n" % (msg_class, msg_size)
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else:
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return "<%s> (%d bytes):\n%s" % (msg_class, msg_size, msg)
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def log(msg):
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sys.stderr.write("%s\n" % msg)
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sys.stderr.flush()
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class CallException(Exception):
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def __init__(self, code, message):
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super(CallException, self).__init__()
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self.args = [code, message]
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class PinException(CallException):
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pass
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class field(object):
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# Decorator extracts single value from
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# protobuf object. If the field is not
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# present, raises an exception.
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def __init__(self, field):
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self.field = field
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def __call__(self, f):
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def wrapped_f(*args, **kwargs):
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ret = f(*args, **kwargs)
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ret.HasField(self.field)
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return getattr(ret, self.field)
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return wrapped_f
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class expect(object):
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# Decorator checks if the method
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# returned one of expected protobuf messages
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# or raises an exception
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def __init__(self, *expected):
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self.expected = expected
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def __call__(self, f):
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def wrapped_f(*args, **kwargs):
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ret = f(*args, **kwargs)
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if not isinstance(ret, self.expected):
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raise Exception("Got %s, expected %s" % (ret.__class__, self.expected))
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return ret
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return wrapped_f
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def normalize_nfc(txt):
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if sys.version_info[0] < 3:
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if isinstance(txt, unicode):
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return unicodedata.normalize('NFC', txt)
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if isinstance(txt, str):
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return unicodedata.normalize('NFC', txt.decode('utf-8'))
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else:
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if isinstance(txt, bytes):
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return unicodedata.normalize('NFC', txt.decode('utf-8'))
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if isinstance(txt, str):
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return unicodedata.normalize('NFC', txt)
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raise Exception('unicode/str or bytes/str expected')
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class BaseClient(object):
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# Implements very basic layer of sending raw protobuf
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# messages to device and getting its response back.
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def __init__(self, transport, **kwargs):
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self.transport = transport
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super(BaseClient, self).__init__() # *args, **kwargs)
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def cancel(self):
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self.transport.write(proto.Cancel())
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def call_raw(self, msg):
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try:
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self.transport.session_begin()
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self.transport.write(msg)
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resp = self.transport.read_blocking()
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finally:
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self.transport.session_end()
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return resp
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def call(self, msg):
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try:
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self.transport.session_begin()
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resp = self.call_raw(msg)
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handler_name = "callback_%s" % resp.__class__.__name__
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handler = getattr(self, handler_name, None)
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if handler != None:
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msg = handler(resp)
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if msg == None:
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raise Exception("Callback %s must return protobuf message, not None" % handler)
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resp = self.call(msg)
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finally:
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self.transport.session_end()
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return resp
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def callback_Failure(self, msg):
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if msg.code in (types.Failure_PinInvalid,
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types.Failure_PinCancelled, types.Failure_PinExpected):
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raise PinException(msg.code, msg.message)
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raise CallException(msg.code, msg.message)
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def close(self):
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self.transport.close()
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class DebugWireMixin(object):
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def call_raw(self, msg):
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log("SENDING " + pprint(msg))
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resp = super(DebugWireMixin, self).call_raw(msg)
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log("RECEIVED " + pprint(resp))
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return resp
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class TextUIMixin(object):
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# This class demonstrates easy test-based UI
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# integration between the device and wallet.
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# You can implement similar functionality
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# by implementing your own GuiMixin with
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# graphical widgets for every type of these callbacks.
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def __init__(self, *args, **kwargs):
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super(TextUIMixin, self).__init__(*args, **kwargs)
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def callback_ButtonRequest(self, msg):
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# log("Sending ButtonAck for %s " % get_buttonrequest_value(msg.code))
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return proto.ButtonAck()
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def callback_PinMatrixRequest(self, msg):
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if msg.type == 1:
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desc = 'current PIN'
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elif msg.type == 2:
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desc = 'new PIN'
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elif msg.type == 3:
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desc = 'new PIN again'
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else:
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desc = 'PIN'
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log("Use the numeric keypad to describe number positions. The layout is:")
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log(" 7 8 9")
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log(" 4 5 6")
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log(" 1 2 3")
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log("Please enter %s: " % desc)
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pin = getpass.getpass('')
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return proto.PinMatrixAck(pin=pin)
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def callback_PassphraseRequest(self, msg):
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log("Passphrase required: ")
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passphrase = getpass.getpass('')
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log("Confirm your Passphrase: ")
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if passphrase == getpass.getpass(''):
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passphrase = normalize_nfc(passphrase)
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return proto.PassphraseAck(passphrase=passphrase)
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else:
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log("Passphrase did not match! ")
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exit()
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def callback_WordRequest(self, msg):
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log("Enter one word of mnemonic: ")
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try:
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word = raw_input()
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except NameError:
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word = input() # Python 3
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return proto.WordAck(word=word)
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class DebugLinkMixin(object):
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# This class implements automatic responses
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# and other functionality for unit tests
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# for various callbacks, created in order
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# to automatically pass unit tests.
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#
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# This mixing should be used only for purposes
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# of unit testing, because it will fail to work
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# without special DebugLink interface provided
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# by the device.
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def __init__(self, *args, **kwargs):
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super(DebugLinkMixin, self).__init__(*args, **kwargs)
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self.debug = None
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self.in_with_statement = 0
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self.button_wait = 0
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self.screenshot_id = 0
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# Always press Yes and provide correct pin
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self.setup_debuglink(True, True)
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# Do not expect any specific response from device
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self.expected_responses = None
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# Use blank passphrase
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self.set_passphrase('')
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def close(self):
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super(DebugLinkMixin, self).close()
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if self.debug:
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self.debug.close()
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def set_debuglink(self, debug_transport):
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self.debug = DebugLink(debug_transport)
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def set_buttonwait(self, secs):
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self.button_wait = secs
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def __enter__(self):
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# For usage in with/expected_responses
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self.in_with_statement += 1
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return self
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def __exit__(self, _type, value, traceback):
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self.in_with_statement -= 1
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if _type != None:
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# Another exception raised
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return False
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# return isinstance(value, TypeError)
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# Evaluate missed responses in 'with' statement
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if self.expected_responses != None and len(self.expected_responses):
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raise Exception("Some of expected responses didn't come from device: %s" % \
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[ pprint(x) for x in self.expected_responses ])
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# Cleanup
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self.expected_responses = None
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return False
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def set_expected_responses(self, expected):
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if not self.in_with_statement:
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raise Exception("Must be called inside 'with' statement")
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self.expected_responses = expected
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def setup_debuglink(self, button, pin_correct):
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self.button = button # True -> YES button, False -> NO button
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self.pin_correct = pin_correct
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def set_passphrase(self, passphrase):
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self.passphrase = normalize_nfc(passphrase)
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def set_mnemonic(self, mnemonic):
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self.mnemonic = normalize_nfc(mnemonic).split(' ')
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def call_raw(self, msg):
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if SCREENSHOT and self.debug:
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layout = self.debug.read_layout()
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im = Image.new("RGB", (128, 64))
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pix = im.load()
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for x in range(128):
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for y in range(64):
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rx, ry = 127 - x, 63 - y
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if (ord(layout[rx + (ry / 8) * 128]) & (1 << (ry % 8))) > 0:
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pix[x, y] = (255, 255, 255)
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im.save('scr%05d.png' % self.screenshot_id)
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self.screenshot_id += 1
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resp = super(DebugLinkMixin, self).call_raw(msg)
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self._check_request(resp)
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return resp
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def _check_request(self, msg):
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if self.expected_responses != None:
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try:
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expected = self.expected_responses.pop(0)
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except IndexError:
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raise CallException(types.Failure_Other,
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"Got %s, but no message has been expected" % pprint(msg))
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if msg.__class__ != expected.__class__:
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raise CallException(types.Failure_Other,
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"Expected %s, got %s" % (pprint(expected), pprint(msg)))
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fields = expected.ListFields() # only filled (including extensions)
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for field, value in fields:
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if not msg.HasField(field.name) or getattr(msg, field.name) != value:
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raise CallException(types.Failure_Other,
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"Expected %s, got %s" % (pprint(expected), pprint(msg)))
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def callback_ButtonRequest(self, msg):
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log("ButtonRequest code: " + get_buttonrequest_value(msg.code))
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log("Pressing button " + str(self.button))
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if self.button_wait:
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log("Waiting %d seconds " % self.button_wait)
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time.sleep(self.button_wait)
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self.debug.press_button(self.button)
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return proto.ButtonAck()
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def callback_PinMatrixRequest(self, msg):
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if self.pin_correct:
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pin = self.debug.read_pin_encoded()
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else:
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pin = '444222'
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return proto.PinMatrixAck(pin=pin)
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def callback_PassphraseRequest(self, msg):
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log("Provided passphrase: '%s'" % self.passphrase)
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return proto.PassphraseAck(passphrase=self.passphrase)
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def callback_WordRequest(self, msg):
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(word, pos) = self.debug.read_recovery_word()
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if word != '':
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return proto.WordAck(word=word)
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if pos != 0:
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return proto.WordAck(word=self.mnemonic[pos - 1])
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raise Exception("Unexpected call")
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class ProtocolMixin(object):
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PRIME_DERIVATION_FLAG = 0x80000000
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VENDORS = ('bitcointrezor.com',)
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def __init__(self, *args, **kwargs):
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super(ProtocolMixin, self).__init__(*args, **kwargs)
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self.init_device()
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self.tx_api = None
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def set_tx_api(self, tx_api):
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self.tx_api = tx_api
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def init_device(self):
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self.features = expect(proto.Features)(self.call)(proto.Initialize())
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if str(self.features.vendor) not in self.VENDORS:
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raise Exception("Unsupported device")
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def _get_local_entropy(self):
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return os.urandom(32)
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def _convert_prime(self, n):
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# Convert minus signs to uint32 with flag
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return [ int(abs(x) | self.PRIME_DERIVATION_FLAG) if x < 0 else x for x in n ]
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@staticmethod
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def expand_path(n):
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# Convert string of bip32 path to list of uint32 integers with prime flags
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# 0/-1/1' -> [0, 0x80000001, 0x80000001]
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if not n:
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return []
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n = n.split('/')
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path = []
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for x in n:
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prime = False
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if x.endswith("'"):
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x = x.replace('\'', '')
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prime = True
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if x.startswith('-'):
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prime = True
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x = abs(int(x))
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if prime:
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x |= ProtocolMixin.PRIME_DERIVATION_FLAG
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path.append(x)
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return path
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@expect(proto.PublicKey)
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def get_public_node(self, n, ecdsa_curve_name=DEFAULT_CURVE, show_display=False):
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n = self._convert_prime(n)
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if not ecdsa_curve_name:
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ecdsa_curve_name=DEFAULT_CURVE
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return self.call(proto.GetPublicKey(address_n=n, ecdsa_curve_name=ecdsa_curve_name, show_display=show_display))
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@field('address')
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@expect(proto.Address)
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def get_address(self, coin_name, n, show_display=False, multisig=None):
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n = self._convert_prime(n)
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if multisig:
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return self.call(proto.GetAddress(address_n=n, coin_name=coin_name, show_display=show_display, multisig=multisig))
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else:
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return self.call(proto.GetAddress(address_n=n, coin_name=coin_name, show_display=show_display))
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@field('address')
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@expect(proto.EthereumAddress)
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def ethereum_get_address(self, n, show_display=False, multisig=None):
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n = self._convert_prime(n)
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return self.call(proto.EthereumGetAddress(address_n=n, show_display=show_display))
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def ethereum_sign_tx(self, n, nonce, gas_price, gas_limit, to, value, data=''):
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from rlp.utils import int_to_big_endian
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n = self._convert_prime(n)
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try:
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self.transport.session_begin()
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response = self.call(proto.EthereumSignTx(
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address_n=n,
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nonce=int_to_big_endian(nonce),
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gas_price=int_to_big_endian(gas_price),
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gas_limit=int_to_big_endian(gas_limit),
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to=to,
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value=int_to_big_endian(value)))
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if data:
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data, chunk = data[1024:], data[:1024]
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response.data_initial_chunk = chunk
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response.data_length = len(data)
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while response.HasField('data_length'):
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data, chunk = data[1024:], data[:1024]
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response = self.call(proto.EthereumTxAck(data_chunk=chunk))
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return response.signature_v, response.signature_r, response.signature_s
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finally:
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self.transport.session_end()
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@field('entropy')
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@expect(proto.Entropy)
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def get_entropy(self, size):
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return self.call(proto.GetEntropy(size=size))
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@field('message')
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@expect(proto.Success)
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def ping(self, msg, button_protection=False, pin_protection=False, passphrase_protection=False):
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msg = proto.Ping(message=msg,
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button_protection=button_protection,
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pin_protection=pin_protection,
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passphrase_protection=passphrase_protection)
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return self.call(msg)
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def get_device_id(self):
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return self.features.device_id
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@field('message')
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@expect(proto.Success)
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def apply_settings(self, label=None, language=None, use_passphrase=None, homescreen=None):
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settings = proto.ApplySettings()
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if label != None:
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settings.label = label
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if language:
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settings.language = language
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if use_passphrase != None:
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settings.use_passphrase = use_passphrase
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if homescreen != None:
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settings.homescreen = homescreen
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out = self.call(settings)
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self.init_device() # Reload Features
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return out
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@field('message')
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@expect(proto.Success)
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def clear_session(self):
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return self.call(proto.ClearSession())
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@field('message')
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@expect(proto.Success)
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def change_pin(self, remove=False):
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ret = self.call(proto.ChangePin(remove=remove))
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self.init_device() # Re-read features
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return ret
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@expect(proto.MessageSignature)
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def sign_message(self, coin_name, n, message):
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n = self._convert_prime(n)
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# Convert message to UTF8 NFC (seems to be a bitcoin-qt standard)
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message = normalize_nfc(message).encode("utf-8")
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return self.call(proto.SignMessage(coin_name=coin_name, address_n=n, message=message))
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@expect(proto.SignedIdentity)
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def sign_identity(self, identity, challenge_hidden, challenge_visual, ecdsa_curve_name=DEFAULT_CURVE):
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return self.call(proto.SignIdentity(identity=identity, challenge_hidden=challenge_hidden, challenge_visual=challenge_visual, ecdsa_curve_name=ecdsa_curve_name))
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@expect(proto.ECDHSessionKey)
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def get_ecdh_session_key(self, identity, peer_public_key, ecdsa_curve_name=DEFAULT_CURVE):
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return self.call(proto.GetECDHSessionKey(identity=identity, peer_public_key=peer_public_key, ecdsa_curve_name=ecdsa_curve_name))
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@field('message')
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@expect(proto.Success)
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def set_u2f_counter(self, u2f_counter):
|
|
ret = self.call(proto.SetU2FCounter(u2f_counter = u2f_counter))
|
|
return ret
|
|
|
|
def verify_message(self, address, signature, message):
|
|
# Convert message to UTF8 NFC (seems to be a bitcoin-qt standard)
|
|
message = normalize_nfc(message).encode("utf-8")
|
|
try:
|
|
if address:
|
|
resp = self.call(proto.VerifyMessage(address=address, signature=signature, message=message))
|
|
else:
|
|
resp = self.call(proto.VerifyMessage(signature=signature, message=message))
|
|
except CallException as e:
|
|
resp = e
|
|
if isinstance(resp, proto.Success):
|
|
return True
|
|
return False
|
|
|
|
@expect(proto.EncryptedMessage)
|
|
def encrypt_message(self, pubkey, message, display_only, coin_name, n):
|
|
if coin_name and n:
|
|
n = self._convert_prime(n)
|
|
return self.call(proto.EncryptMessage(pubkey=pubkey, message=message, display_only=display_only, coin_name=coin_name, address_n=n))
|
|
else:
|
|
return self.call(proto.EncryptMessage(pubkey=pubkey, message=message, display_only=display_only))
|
|
|
|
@expect(proto.DecryptedMessage)
|
|
def decrypt_message(self, n, nonce, message, msg_hmac):
|
|
n = self._convert_prime(n)
|
|
return self.call(proto.DecryptMessage(address_n=n, nonce=nonce, message=message, hmac=msg_hmac))
|
|
|
|
@field('value')
|
|
@expect(proto.CipheredKeyValue)
|
|
def encrypt_keyvalue(self, n, key, value, ask_on_encrypt=True, ask_on_decrypt=True, iv=b''):
|
|
n = self._convert_prime(n)
|
|
return self.call(proto.CipherKeyValue(address_n=n,
|
|
key=key,
|
|
value=value,
|
|
encrypt=True,
|
|
ask_on_encrypt=ask_on_encrypt,
|
|
ask_on_decrypt=ask_on_decrypt,
|
|
iv=iv))
|
|
|
|
@field('value')
|
|
@expect(proto.CipheredKeyValue)
|
|
def decrypt_keyvalue(self, n, key, value, ask_on_encrypt=True, ask_on_decrypt=True, iv=b''):
|
|
n = self._convert_prime(n)
|
|
return self.call(proto.CipherKeyValue(address_n=n,
|
|
key=key,
|
|
value=value,
|
|
encrypt=False,
|
|
ask_on_encrypt=ask_on_encrypt,
|
|
ask_on_decrypt=ask_on_decrypt,
|
|
iv=iv))
|
|
|
|
@field('tx_size')
|
|
@expect(proto.TxSize)
|
|
def estimate_tx_size(self, coin_name, inputs, outputs):
|
|
msg = proto.EstimateTxSize()
|
|
msg.coin_name = coin_name
|
|
msg.inputs_count = len(inputs)
|
|
msg.outputs_count = len(outputs)
|
|
return self.call(msg)
|
|
|
|
def _prepare_simple_sign_tx(self, coin_name, inputs, outputs):
|
|
msg = proto.SimpleSignTx()
|
|
msg.coin_name = coin_name
|
|
msg.inputs.extend(inputs)
|
|
msg.outputs.extend(outputs)
|
|
|
|
known_hashes = []
|
|
for inp in inputs:
|
|
if inp.prev_hash in known_hashes:
|
|
continue
|
|
|
|
tx = msg.transactions.add()
|
|
if self.tx_api:
|
|
tx.CopyFrom(self.tx_api.get_tx(binascii.hexlify(inp.prev_hash)))
|
|
else:
|
|
raise Exception('TX_API not defined')
|
|
known_hashes.append(inp.prev_hash)
|
|
|
|
return msg
|
|
|
|
def simple_sign_tx(self, coin_name, inputs, outputs):
|
|
msg = self._prepare_simple_sign_tx(coin_name, inputs, outputs)
|
|
return self.call(msg).serialized.serialized_tx
|
|
|
|
def _prepare_sign_tx(self, coin_name, inputs, outputs):
|
|
tx = types.TransactionType()
|
|
tx.inputs.extend(inputs)
|
|
tx.outputs.extend(outputs)
|
|
|
|
txes = {}
|
|
txes[b''] = tx
|
|
|
|
known_hashes = []
|
|
for inp in inputs:
|
|
if inp.prev_hash in known_hashes:
|
|
continue
|
|
|
|
if self.tx_api:
|
|
txes[inp.prev_hash] = self.tx_api.get_tx(binascii.hexlify(inp.prev_hash))
|
|
else:
|
|
raise Exception('TX_API not defined')
|
|
known_hashes.append(inp.prev_hash)
|
|
|
|
return txes
|
|
|
|
def sign_tx(self, coin_name, inputs, outputs, debug_processor=None):
|
|
|
|
start = time.time()
|
|
txes = self._prepare_sign_tx(coin_name, inputs, outputs)
|
|
|
|
try:
|
|
self.transport.session_begin()
|
|
|
|
# Prepare and send initial message
|
|
tx = proto.SignTx()
|
|
tx.inputs_count = len(inputs)
|
|
tx.outputs_count = len(outputs)
|
|
tx.coin_name = coin_name
|
|
res = self.call(tx)
|
|
|
|
# Prepare structure for signatures
|
|
signatures = [None] * len(inputs)
|
|
serialized_tx = b''
|
|
|
|
counter = 0
|
|
while True:
|
|
counter += 1
|
|
|
|
if isinstance(res, proto.Failure):
|
|
raise CallException("Signing failed")
|
|
|
|
if not isinstance(res, proto.TxRequest):
|
|
raise CallException("Unexpected message")
|
|
|
|
# If there's some part of signed transaction, let's add it
|
|
if res.HasField('serialized') and res.serialized.HasField('serialized_tx'):
|
|
log("RECEIVED PART OF SERIALIZED TX (%d BYTES)" % len(res.serialized.serialized_tx))
|
|
serialized_tx += res.serialized.serialized_tx
|
|
|
|
if res.HasField('serialized') and res.serialized.HasField('signature_index'):
|
|
if signatures[res.serialized.signature_index] != None:
|
|
raise Exception("Signature for index %d already filled" % res.serialized.signature_index)
|
|
signatures[res.serialized.signature_index] = res.serialized.signature
|
|
|
|
if res.request_type == types.TXFINISHED:
|
|
# Device didn't ask for more information, finish workflow
|
|
break
|
|
|
|
# Device asked for one more information, let's process it.
|
|
current_tx = txes[res.details.tx_hash]
|
|
|
|
if res.request_type == types.TXMETA:
|
|
msg = types.TransactionType()
|
|
msg.version = current_tx.version
|
|
msg.lock_time = current_tx.lock_time
|
|
msg.inputs_cnt = len(current_tx.inputs)
|
|
if res.details.tx_hash:
|
|
msg.outputs_cnt = len(current_tx.bin_outputs)
|
|
else:
|
|
msg.outputs_cnt = len(current_tx.outputs)
|
|
res = self.call(proto.TxAck(tx=msg))
|
|
continue
|
|
|
|
elif res.request_type == types.TXINPUT:
|
|
msg = types.TransactionType()
|
|
msg.inputs.extend([current_tx.inputs[res.details.request_index], ])
|
|
res = self.call(proto.TxAck(tx=msg))
|
|
continue
|
|
|
|
elif res.request_type == types.TXOUTPUT:
|
|
msg = types.TransactionType()
|
|
if res.details.tx_hash:
|
|
msg.bin_outputs.extend([current_tx.bin_outputs[res.details.request_index], ])
|
|
else:
|
|
msg.outputs.extend([current_tx.outputs[res.details.request_index], ])
|
|
|
|
if debug_processor != None:
|
|
# If debug_processor function is provided,
|
|
# pass thru it the request and prepared response.
|
|
# This is useful for unit tests, see test_msg_signtx
|
|
msg = debug_processor(res, msg)
|
|
|
|
res = self.call(proto.TxAck(tx=msg))
|
|
continue
|
|
|
|
finally:
|
|
self.transport.session_end()
|
|
|
|
if None in signatures:
|
|
raise Exception("Some signatures are missing!")
|
|
|
|
log("SIGNED IN %.03f SECONDS, CALLED %d MESSAGES, %d BYTES" % \
|
|
(time.time() - start, counter, len(serialized_tx)))
|
|
|
|
return (signatures, serialized_tx)
|
|
|
|
@field('message')
|
|
@expect(proto.Success)
|
|
def wipe_device(self):
|
|
ret = self.call(proto.WipeDevice())
|
|
self.init_device()
|
|
return ret
|
|
|
|
@field('message')
|
|
@expect(proto.Success)
|
|
def recovery_device(self, word_count, passphrase_protection, pin_protection, label, language):
|
|
if self.features.initialized:
|
|
raise Exception("Device is initialized already. Call wipe_device() and try again.")
|
|
|
|
if word_count not in (12, 18, 24):
|
|
raise Exception("Invalid word count. Use 12/18/24")
|
|
|
|
res = self.call(proto.RecoveryDevice(word_count=int(word_count),
|
|
passphrase_protection=bool(passphrase_protection),
|
|
pin_protection=bool(pin_protection),
|
|
label=label,
|
|
language=language,
|
|
enforce_wordlist=True))
|
|
|
|
self.init_device()
|
|
return res
|
|
|
|
@field('message')
|
|
@expect(proto.Success)
|
|
def reset_device(self, display_random, strength, passphrase_protection, pin_protection, label, language):
|
|
if self.features.initialized:
|
|
raise Exception("Device is initialized already. Call wipe_device() and try again.")
|
|
|
|
# Begin with device reset workflow
|
|
msg = proto.ResetDevice(display_random=display_random,
|
|
strength=strength,
|
|
language=language,
|
|
passphrase_protection=bool(passphrase_protection),
|
|
pin_protection=bool(pin_protection),
|
|
label=label)
|
|
|
|
resp = self.call(msg)
|
|
if not isinstance(resp, proto.EntropyRequest):
|
|
raise Exception("Invalid response, expected EntropyRequest")
|
|
|
|
external_entropy = self._get_local_entropy()
|
|
log("Computer generated entropy: " + binascii.hexlify(external_entropy).decode('ascii'))
|
|
ret = self.call(proto.EntropyAck(entropy=external_entropy))
|
|
self.init_device()
|
|
return ret
|
|
|
|
@field('message')
|
|
@expect(proto.Success)
|
|
def load_device_by_mnemonic(self, mnemonic, pin, passphrase_protection, label, language, skip_checksum=False):
|
|
m = Mnemonic('english')
|
|
if not skip_checksum and not m.check(mnemonic):
|
|
raise Exception("Invalid mnemonic checksum")
|
|
|
|
# Convert mnemonic to UTF8 NKFD
|
|
mnemonic = Mnemonic.normalize_string(mnemonic)
|
|
|
|
# Convert mnemonic to ASCII stream
|
|
mnemonic = normalize_nfc(mnemonic)
|
|
|
|
if self.features.initialized:
|
|
raise Exception("Device is initialized already. Call wipe_device() and try again.")
|
|
|
|
resp = self.call(proto.LoadDevice(mnemonic=mnemonic, pin=pin,
|
|
passphrase_protection=passphrase_protection,
|
|
language=language,
|
|
label=label,
|
|
skip_checksum=skip_checksum))
|
|
self.init_device()
|
|
return resp
|
|
|
|
@field('message')
|
|
@expect(proto.Success)
|
|
def load_device_by_xprv(self, xprv, pin, passphrase_protection, label, language):
|
|
if self.features.initialized:
|
|
raise Exception("Device is initialized already. Call wipe_device() and try again.")
|
|
|
|
if xprv[0:4] not in ('xprv', 'tprv'):
|
|
raise Exception("Unknown type of xprv")
|
|
|
|
if len(xprv) < 100 and len(xprv) > 112:
|
|
raise Exception("Invalid length of xprv")
|
|
|
|
node = types.HDNodeType()
|
|
data = binascii.hexlify(tools.b58decode(xprv, None))
|
|
|
|
if data[90:92] != b'00':
|
|
raise Exception("Contain invalid private key")
|
|
|
|
checksum = binascii.hexlify(hashlib.sha256(hashlib.sha256(binascii.unhexlify(data[:156])).digest()).digest()[:4])
|
|
if checksum != data[156:]:
|
|
raise Exception("Checksum doesn't match")
|
|
|
|
# version 0488ade4
|
|
# depth 00
|
|
# fingerprint 00000000
|
|
# child_num 00000000
|
|
# chaincode 873dff81c02f525623fd1fe5167eac3a55a049de3d314bb42ee227ffed37d508
|
|
# privkey 00e8f32e723decf4051aefac8e2c93c9c5b214313817cdb01a1494b917c8436b35
|
|
# checksum e77e9d71
|
|
|
|
node.depth = int(data[8:10], 16)
|
|
node.fingerprint = int(data[10:18], 16)
|
|
node.child_num = int(data[18:26], 16)
|
|
node.chain_code = binascii.unhexlify(data[26:90])
|
|
node.private_key = binascii.unhexlify(data[92:156]) # skip 0x00 indicating privkey
|
|
|
|
resp = self.call(proto.LoadDevice(node=node,
|
|
pin=pin,
|
|
passphrase_protection=passphrase_protection,
|
|
language=language,
|
|
label=label))
|
|
self.init_device()
|
|
return resp
|
|
|
|
def firmware_update(self, fp):
|
|
if self.features.bootloader_mode == False:
|
|
raise Exception("Device must be in bootloader mode")
|
|
|
|
resp = self.call(proto.FirmwareErase())
|
|
if isinstance(resp, proto.Failure) and resp.code == types.Failure_FirmwareError:
|
|
return False
|
|
|
|
data = fp.read()
|
|
fingerprint = hashlib.sha256(data[256:]).hexdigest()
|
|
log("Firmware fingerprint: " + fingerprint)
|
|
resp = self.call(proto.FirmwareUpload(payload=data))
|
|
|
|
if isinstance(resp, proto.Success):
|
|
return True
|
|
|
|
elif isinstance(resp, proto.Failure) and resp.code == types.Failure_FirmwareError:
|
|
return False
|
|
|
|
raise Exception("Unexpected result %s" % resp)
|
|
|
|
class TrezorClient(ProtocolMixin, TextUIMixin, BaseClient):
|
|
pass
|
|
|
|
class TrezorClientDebug(ProtocolMixin, TextUIMixin, DebugWireMixin, BaseClient):
|
|
pass
|
|
|
|
class TrezorDebugClient(ProtocolMixin, DebugLinkMixin, DebugWireMixin, BaseClient):
|
|
pass
|